Steve Loughran created HADOOP-14204:
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Summary: S3A multipart commit failing,
"UnsupportedOperationException at java.util.Collections$UnmodifiableList.sort"
Key: HADOOP-14204
URL: https://issues.apache.org/jira/browse/HADOOP-14204
Project: Hadoop Common
Issue Type: Bug
Components: fs/s3
Affects Versions: 2.8.0
Reporter: Steve Loughran
Assignee: Steve Loughran
Priority: Critical
Stack trace seen trying to commit a multipart upload, as the EMR code (which
takes a {{List<String> etags}} is trying to sort that list directly, which it
can't do if the list doesn't want to be sorted.
later versions of the SDK clone the list before sorting.
We need to make sure that the list passed in can be sorted.
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